The temperature at the end of the day was 64 degrees. The temperature had increased twice during the day, once by 8 degrees and another time by 4 degrees.

Which expression shows what the temperature was at the start of the day?

64 – 8 – 4
64 – 8 – 4

64 + 8 – 4
64 + 8 – 4

64 – 8 + 4
64 – 8 + 4

78 + 5 + 7

The correct expression is: 64 - 8 - 4

To find the temperature at the start of the day, we need to subtract the increases from the end temperature.

The correct expression is: 64 - 8 - 4